"Trapped in a cocoon, the silkworm weaves her final dream." Hollow Cocoon is a first-person horror adventure game set in 1980s Japan. Immerse yourself in meticulously recreated environments as you venture into the depths of unspeakable horrors that await you.
| App ID | 2414630 |
|---|---|
| App type | Game |
| Developer | NAYUTA STUDIO |
| Publisher | NAYUTA STUDIO |
| Release date | 2023-12-07 01:00 UTC |
| Release state | released |
| Controller support | full |
| Content descriptors | Frequent Violence or Gore, General Mature Content |
| Localized names | japanese ウツロマユ - Hollow Cocoon - |
| Store page | store.steampowered.com/app/2414630 |
| Last store refresh | 5 hours ago |
| # | Executable | Arguments | OS | Description |
|---|---|---|---|---|
| 0 | Hollow Cocoon.exe |
No player history yet. This app is now tracked, so data will appear within about ten minutes.
| Playing now | Not polled yet (never) |
|---|---|
| 24-hour peak | |
| All-time peak (tracked) |
All Steam store regions, converted to USD at today's exchange rate, compared with the US price. Lowest is the lowest price SteamRaw has recorded for that region.
Loading regional prices…
| Date | Price | Regular | Discount |
|---|---|---|---|
| 2026-09-11 21:14 UTC | $14.99 | $14.99 |
| DLC | AppID | Release | Price |
|---|---|---|---|
| No DLC known for this app. | |||
| Branch | Build ID | Description | Updated | Password |
|---|---|---|---|---|
| public | 20235308 | 2025-10-03 08:09 UTC |
| Depot | Name | OS | Size | Download | Public manifest | Notes |
|---|---|---|---|---|---|---|
| 2414631 | 7.08 GB | 3.59 GB | 974187141002958009 |
A build is one published version of the game's files on a branch. Steam assigns a new build ID every time the developer pushes an update, so this list is the update history of the app. The files inside a build (depot manifests) are only readable with an account that owns the game, which SteamRaw does not have yet, so build contents are not shown.
| Build ID | Branch | Updated | First seen |
|---|---|---|---|
| 20235308 | public | 2025-10-03 08:09 UTC | 6 hours ago |
Every appinfo change SteamRaw has observed, grouped by changelist. Tags, features, languages, builds, depots, prices and any other key Steam publishes. Tracking since 2026-09-11 21:14 UTC.
No changes recorded since SteamRaw first saw this app. Every future PICS change will be listed here.
| Changelist | Apps | Packages | Seen | What changed |
|---|---|---|---|---|
| No changelists recorded for this app yet. | ||||
On October 3, 2025 (Fri), Unity Technologies announced a security vulnerability affecting games developed with Unity versions 2017 and later. We have urgently applied a patch to address this issue. We kindly ask all players to update to the latest Ver.1.25 before playing Hollow Cocoon. Thank you for your understanding and cooperation.
Spanish is now supported in Ver 1.24. We would like to take this opportunity to thank the translators for their careful and accurate translations. Thank you very much. Vietnamese translator: JoseKenshin Traducciones Other Fixes - Some Italian text has been fixed. https://store.steampowered.com/app/2414630/
- Some corrections to Vietnamese text.
Vietnamese is now supported in Ver 1.22. We would like to take this opportunity to thank the translators for their careful and accurate translations. Thank you very much. Vietnamese translator: GVMluccaMovies Other Fixes - Some Italian text has been fixed. https://store.steampowered.com/app/2414630/
- Fixed that enemies do not detect flashlight light on EASY difficulty level. - Fixed some Italian text.
- Minor bug fixes.
Brazilian Portuguese is now supported in Ver 1.19. We would like to take this opportunity to thank the translators for their careful and accurate translations. Thank you very much. Brazilian Portuguese translator: Dênnys V. F. de Menezes Translator's Steam Profile: (Gemini Saga) https://steamcommunity.com/profiles/76561198097873608/ Other Fixes - Some Italian text has been fixed. https://store.steampowered.com/app/2414630/
- Some corrections to German text. - Some corrections to Indonesian text.
Indonesian is now supported in Ver 1.17. We would like to take this opportunity to thank the translators for their careful and accurate translations. Thank you very much. Indonesian translator: Ryuuzuki https://store.steampowered.com/app/2414630/
Russian is now supported in Ver 1.16. We would like to take this opportunity to thank the translators for their careful and accurate translations. Thank you very much. Russian translator: Nikita Mikhalev https://store.steampowered.com/app/2414630/
Italian is now supported in Ver 1.15. We would like to take this opportunity to thank the translators for their careful and accurate translations. Thank you very much. In addition, the following minor corrections were made - Fixed mistranslations of some English texts. - Fixed mistranslation of some German texts. - Fixed a bug that prevented some characters from being displayed in Korean. https://store.steampowered.com/app/2414630/
German is now supported in Ver 1.14. We would like to take this opportunity to thank the translators for their careful and accurate translations. Thank you very much. German translator: Bluenatic_Momoko https://store.steampowered.com/app/2414630/
- Fixed an issue where enemy hair was not displayed when looking at the enemy through some glass.
- Added ruby to some Japanese text. - Corrected some Korean text.
Korean is now supported in Ver 1.11. We would like to take this opportunity to thank the translators for their careful and accurate translations. Thank you very much. Korean translator: DAEHYEOK https://store.steampowered.com/app/2414630/
Full appinfo as delivered by Steam PICS, changenumber 37459553. Also at /api/app/2414630/raw.
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